document.write( "Question 907602: An investment broker reports that the yearly returns on common stocks are approximately normally distributed with a mean return of 12.4 percent and a standard deviation of 20.6 percent.
\n" ); document.write( "On the other hand, the firm reports that the yearly returns on tax free municipal bonds are approximately normally distributed with a mean return of 5.2 percent and a standard deviation of 8.6 percent. Find the probability that a randomly selected:
\n" ); document.write( "A) Common stock will give a positive yearly return
\n" ); document.write( "B)Tax free municipal bond will give a positive yearly return.
\n" ); document.write( "C) Common stock will give more than a 10 percent return.
\n" ); document.write( "D) Taxfree municipal bond will give more than a 10 percent return.
\n" ); document.write( "E) Common stock will give a loss of at least 10 percent.
\n" ); document.write( "F) Tax free municipal bond will give a loss of at least 10 percent
\n" ); document.write( "

Algebra.Com's Answer #550459 by reviewermath(1029)\"\" \"About 
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An investment broker reports that the yearly returns on common stocks are approximately normally distributed with a mean return of 12.4 percent and a standard deviation of 20.6 percent.
\n" ); document.write( "On the other hand, the firm reports that the yearly returns on tax free municipal bonds are approximately normally distributed with a mean return of 5.2 percent and a standard deviation of 8.6 percent. Find the probability that a randomly selected:
\n" ); document.write( "A) Common stock will give a positive yearly return
\n" ); document.write( "P(Z > \"%280-12.4%29%2F20.6\") =\"highlight%280.7264%29\"\r
\n" ); document.write( "\n" ); document.write( "B)Tax free municipal bond will give a positive yearly return.
\n" ); document.write( "P(Z > \"%280-5.2%29%2F8.6\") =\"highlight%280.7273%29\"\r
\n" ); document.write( "\n" ); document.write( "C) Common stock will give more than a 10 percent return.
\n" ); document.write( "P(Z > \"%2810-12.4%29%2F20.6\") =\"highlight%280.5464%29\"\r
\n" ); document.write( "\n" ); document.write( "D) Taxfree municipal bond will give more than a 10 percent return.
\n" ); document.write( "P(Z > \"%2810-5.2%29%2F8.6\") =\"highlight%280.2884%29\"
\n" ); document.write( "E) Common stock will give a loss of at least 10 percent.
\n" ); document.write( "P(Z ≤ \"%28-10-12.4%29%2F20.6\") =\"highlight%280.1384%29\"
\n" ); document.write( "F) Tax free municipal bond will give a loss of at least 10 percent
\n" ); document.write( "P(Z ≤ \"%28-10-5.2%29%2F8.6\") =\"highlight%280.0386%29\"
\n" ); document.write( "
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